SAN FRANCISCO— The Pac-12 will commission an independent review of officiating during the league tournament after comments by the conference's former coordinator of officials raised questions about its integrity.

The league announced today that the review will be done by "experts who are entirely independent of the Pac-12 Conference." The investigation is expected to be completed by June.

Ed Rush resigned as the conference's coordinator of officials Thursday. He said he was just trying to "lighten the mood" in a tense locker room when he "jokingly" made offers of $5,000 or a trip to Mexico for any referee who disciplined Arizona coach Sean Miller during the league tournament.

The Pac-12's officiating program has endured a swarm of public criticism since the incident became public and questions about whether Rush was joking persist.